TM1818-QSOP24

{
  "slug": "tm1818-qsop24",
  "version": "0.1.0",
  "type": "component",
  "description": "TM Shenzhen Titan Micro Elec LED Drivers, QSOP-24. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "led drivers",
    "tm1818-qsop24",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "tm1818-qsop24.kicad_sym",
    "tm1818-qsop24.kicad_mod",
    "tm1818-qsop24.glb",
    "tm1818-qsop24.step",
    "tm1818-qsop24.lbr",
    "docs/hero.png",
    "docs/tm1818-qsop24-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "tm1818-qsop24-hero.glb",
    "tm1818-qsop24-hero.overlay.json",
    "tm1818-qsop24-etched.glb"
  ],
  "component": {
    "mpn": "TM1818-QSOP24",
    "manufacturer": "TM Shenzhen Titan Micro Elec",
    "package": "QSOP-24",
    "pin_count": 24,
    "category": "LED Drivers",
    "subcategory": "LED Drivers",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590902553268350976",
    "parts": {
      "symbol": "tm1818-qsop24.kicad_sym",
      "footprint": "tm1818-qsop24.kicad_mod",
      "model_3d": "tm1818-qsop24-hero.glb",
      "model_3d_plain": "tm1818-qsop24-etched.glb",
      "model_3d_step": "tm1818-qsop24-etched.step",
      "model_3d_step_plain": "tm1818-qsop24.step",
      "lbr": "tm1818-qsop24.lbr"
    },
    "distributor_links": {
      "lcsc": "C5452429"
    },
    "distributor_check": {
      "checked_at": "2026-10-19T20:26:09Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "GND",
        "type": "power_in",
        "description": "Ground for control logic and the constant-current drive return path; datasheet voltages are referenced to network ground."
      },
      {
        "number": "2",
        "name": "SDI",
        "type": "input",
        "description": "Serial data input with Schmitt-trigger buffer; data is shifted in on the CLK rising edge, with a maximum clock frequency of 25 MHz."
      },
      {
        "number": "3",
        "name": "CLK",
        "type": "input",
        "description": "Serial shift clock input with Schmitt-trigger buffer; data shifts on the rising edge, with a maximum clock frequency of 25 MHz."
      },
      {
        "number": "4",
        "name": "LE",
        "type": "input",
        "description": "Latch enable with Schmitt-trigger buffer; when LE is high serial data passes into the input latch, and when LE is low the data is latched."
      },
      {
        "number": "5",
        "name": "OUT0",
        "type": "output",
        "description": "Constant-current sink output channel 0; this output may be shorted to other outputs to obtain higher output current, with DC output current absolute maximum of 65 mA and output voltage range -0.4 V to +6.0 V."
      },
      {
        "number": "6",
        "name": "OUT1",
        "type": "output",
        "description": "Constant-current sink output channel 1; current is set by R-EXT, with output withstand voltage of 5.5 V recommended and 6.0 V absolute maximum."
      },
      {
        "number": "7",
        "name": "OUT2",
        "type": "output",
        "description": "Constant-current sink output channel 2; current is set by R-EXT, with output withstand voltage of 5.5 V recommended and 6.0 V absolute maximum."
      },
      {
        "number": "8",
        "name": "OUT3",
        "type": "output",
        "description": "Constant-current sink output channel 3; current is set by R-EXT, with output withstand voltage of 5.5 V recommended and 6.0 V absolute maximum."
      },
      {
        "number": "9",
        "name": "OUT4",
        "type": "output",
        "description": "Constant-current sink output channel 4; current is set by R-EXT, with output withstand voltage of 5.5 V recommended and 6.0 V absolute maximum."
      },
      {
        "number": "10",
        "name": "OUT5",
        "type": "output",
        "description": "Constant-current sink output channel 5; current is set by R-EXT, with output withstand voltage of 5.5 V recommended and 6.0 V absolute maximum."
      },
      {
        "number": "11",
        "name": "OUT6",
        "type": "output",
        "description": "Constant-current sink output channel 6; current is set by R-EXT, with output withstand voltage of 5.5 V recommended and 6.0 V absolute maximum."
      },
      {
        "number": "12",
        "name": "OUT7",
        "type": "output",
        "description": "Constant-current sink output channel 7; current is set by R-EXT, with output withstand voltage of 5.5 V recommended and 6.0 V absolute maximum."
      },
      {
        "number": "13",
        "name": "OUT8",
        "type": "output",
        "description": "Constant-current sink output channel 8; current is set by R-EXT, with output withstand voltage of 5.5 V recommended and 6.0 V absolute maximum."
      },
      {
        "number": "14",
        "name": "OUT9",
        "type": "output",
        "description": "Constant-current sink output channel 9; current is set by R-EXT, with output withstand voltage of 5.5 V recommended and 6.0 V absolute maximum."
      },
      {
        "number": "15",
        "name": "OUT10",
        "type": "output",
        "description": "Constant-current sink output channel 10; current is set by R-EXT, with output withstand voltage of 5.5 V recommended and 6.0 V absolute maximum."
      },
      {
        "number": "16",
        "name": "OUT11",
        "type": "output",
        "description": "Constant-current sink output channel 11; current is set by R-EXT, with output withstand voltage of 5.5 V recommended and 6.0 V absolute maximum."
      },
      {
        "number": "17",
        "name": "OUT12",
        "type": "output",
        "description": "Constant-current sink output channel 12; current is set by R-EXT, with output withstand voltage of 5.5 V recommended and 6.0 V absolute maximum."
      },
      {
        "number": "18",
        "name": "OUT13",
        "type": "output",
        "description": "Constant-current sink output channel 13; current is set by R-EXT, with output withstand voltage of 5.5 V recommended and 6.0 V absolute maximum."
      },
      {
        "number": "19",
        "name": "OUT14",
        "type": "output",
        "description": "Constant-current sink output channel 14; current is set by R-EXT, with output withstand voltage of 5.5 V recommended and 6.0 V absolute maximum."
      },
      {
        "number": "20",
        "name": "OUT15",
        "type": "output",
        "description": "Constant-current sink output channel 15; current is set by R-EXT, with output withstand voltage of 5.5 V recommended and 6.0 V absolute maximum."
      },
      {
        "number": "21",
        "name": "OE",
        "type": "input",
        "description": "Output enable, active low: low turns on OUT0-OUT15, high turns them off; the pin has an internal pull-up to VCC of 32-48 kΩ."
      },
      {
        "number": "22",
        "name": "SDO",
        "type": "output",
        "description": "Serial data output updated on the CLK rising edge, intended to connect to the SDI of the next device in the chain; VOH is at least VCC-0.4 V at -6 mA."
      },
      {
        "number": "23",
        "name": "R-EXT",
        "type": "bidirectional",
        "description": "Constant-current setting pin; an external resistor to GND sets the OUT0-OUT15 current, with Riref about 1.16 V (470 Ω gives about 37 mA and 1.2 kΩ gives about 14.5 mA)."
      },
      {
        "number": "24",
        "name": "VCC",
        "type": "power_in",
        "description": "Chip supply voltage, specified from 3.0 V to 5.5 V."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The datasheet lists SSOP24 and QSOP24 as the packages and gives one pin-function table for the part ; The pin diagram text on page 2 (TOP VIEW) is garbled in extraction, so it could not be used to cross; Pin 23 R-EXT is marked I/O in the datasheet, so it is mapped to bidirectional. Pin 21 OE is marked I"
        ],
        "pages_sent": 10,
        "cost_usd": 0.0513,
        "at": "2026-10-19T20:25:52"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590902553268350976",
        "pages": 10,
        "sha256": "ea19e116e2685809",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 24,
        "described": 24,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "tm1818-qsop24.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          8.65,
          1.72
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "d2244e3f2eff53b6985f22b8c8a44bb319a1973a6a440b2597d6d67813b09338",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "tm1818-qsop24-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          8.65,
          1.72
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "4725179453928dde3d4ae9bd93b9be6c4e091624ac0942f65d05d6fd87a2a6b7",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}